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Posted to dev@calcite.apache.org by 董剑辉 <mu...@gmail.com> on 2021/08/26 07:02:56 UTC

Table, RelOptTable and SqlValidatorTable

Hi:
	I would like to ask, what’s the difference between Table, RelOptTable and SqlValidatorTable?

Re: Table, RelOptTable and SqlValidatorTable

Posted by James Starr <ja...@gmail.com>.

They both represent tables, just at different stages.  SqlValidatorTable is
used during validation of SqlNode, aka an abstract syntax tree.  Where the
RelOptTable contains the information for the Rel tree, aka the execution
tree.

On Thu, Aug 26, 2021 at 2:18 PM 董剑辉 <mu...@gmail.com> wrote:

> Hi:
>         I would like to ask, what’s the difference between Table,
> RelOptTable and SqlValidatorTable?